Biotreatment of Industrial Effluents
Intended for practicing environmental engineers and technologists from any industry, this book discusses the treatment procedures using biochemical means for all types of solid, liquid and gaseous contaminants.
TABLE OF CONTENTS Biotreatment of Industrial Effluents
Nomenclature
| a | gas-liquid interfacial area (gas area per unit liquid volume) |
| BOD | biological oxygen demand |
| C L | liquid phase concentration |
| | liquid phase concentration that is in equilibrium with the gas phase |
| C x | concentration of pollutant at distance x |
| d | bubble diameter |
| d P | particle diameter |
| D i | impeller diameter |
| D T | tank diameter |
| E | activation energy |
| f | recycle ratio |
| J D | Coulburn j factor |
| M A | molecular weight of solute |
| M B | molecular weight of solvent |
| N H | Ammonical nitrogen removed (kg/day) |
| N Pe | Peclet number |
| N Re | Reynolds number |
| N Sc | Schmidt number |
| N T | Total nitrogen removed (kg/day) |
| q o | feed flow rate |
| Q | toxic release rate, g/s |
| R | endogeneous respiration rate (3.9 mg O 2/g MLSS /h) |
| R | Gas constant |
| S | substrate concentration in the exit stream |
| S o | substrate concentration in the exit stream |
| T | temperature |
| U | wind speed, m/s |
| U mf | minimum fluidization velocity |
| V | reactor or aeration tank volume (m 3) |
| V A | molar volume of solute |
| X | cell concentration |
| Y | yield coefficient |
| ? | bed porosity |
| ? g | bubble volume to reactor liquid volume |
| ? | Monod specific growth rate |
| ? B | viscosity of solvent |
| ? max K s | Monod constants |
| ? | Association factor (1-2.6) |
| ? | residence time |
| ? c | sludge age |
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